Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-926 5 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-926 6 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-926 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-926 8 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-926 9 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-927 A Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-927 0 Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-927 1 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
410-927 2 Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-927 3 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
410-927 4 Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-927 5 Odenton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-927 6 Odenton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-927 7 Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-927 8 Odenton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-927 9 Odenton MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-928 A Millington MD MGTNMDMLRS0  9212 VERIZON MARYLAND, INC. 242      
410-928 0 Millington MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
410-928 1 Millington MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
410-928 2 Millington MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242      
410-928 3 Millington MD MGTNMDMLRS0  9212 VERIZON MARYLAND, INC. 242      
410-928 4 Millington MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
410-928 5 Millington MD MGTNMDMLRS0  9212 VERIZON MARYLAND, INC. 242      
410-928 6 Millington MD MGTNMDMLRS0  9212 VERIZON MARYLAND, INC. 242      
410-928 7 Millington MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
410-928 8 Millington MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242      
410-928 9 Millington MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
410-929 A Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 0 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 1 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 2 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 3 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 4 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 5 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 6 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-929 7 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-929 8 Baltimore MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238      
410-929 9 Baltimore MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238      
410-930 A Waterloo (Washington DC LATA) MD LARLMD90CM0  6810 REDI-CALL COMMUNICATIONS CO. 236      
410-931 A Parkville MD WHMRMDWMRS2  9212 VERIZON MARYLAND, INC. 238      
410-932 A Elkridge MD HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-933 A Parkville MD WHMRMDWMRS2  9212 VERIZON MARYLAND, INC. 238      
410-934 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-934 0 Annapolis MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-934 1 Annapolis MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-934 2 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-934 3 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
410-934 4 Annapolis MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-934 5 Annapolis MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-934 6 Annapolis MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
410-934 7 Annapolis MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-934 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-934 9 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-935 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-936 A Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
410-936 0 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
410-936 1 Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
410-936 2 Salisbury MD SLBRMDSC2MD  5562 METROPCS, INC. 242      
410-936 3 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-936 4 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-936 5 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-936 6 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-936 7 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-936 8 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
410-936 9 Salisbury MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242      
410-937 A Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-938 A Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 1 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-938 2 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 3 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 4 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 5 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 6 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-938 7 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-938 8 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-939 A Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
410-940 A Annapolis MD PIVLMDPKQMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238      
410-940 0 Annapolis MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238      
410-940 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 2 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 3 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 4 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 5 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 6 Annapolis MD PIVLMDPKQMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238      
410-940 7 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
410-940 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-940 9 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-941 A Jarrettsville 941 MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-941 0 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-941 1 Jarrettsville 941 MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-941 2 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-941 3 Jarrettsville 941 MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
410-941 4 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-941 5 Jarrettsville 941 MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
410-941 6 Jarrettsville 941 MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
410-941 7 Jarrettsville 941 MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-941 8 Jarrettsville 941 MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-941 9 Jarrettsville 941 MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-942 A Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
410-942 0 Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.